Les 3 commandes du post #16 me donne ça mais ce n'est surement plus le même résultat qu'avant le dnf update.
$ rpm -qa \*kmod\*
kmod-libs-26-4.fc31.x86_64
kmod-26-4.fc31.x86_64
akmods-0.5.6-24.fc31.noarch
kmodtool-1-37.fc31.noarch
akmod-wl-6.30.223.271-30.fc31.x86_64
kmod-wl-5.5.5-200.fc31.x86_64-6.30.223.271-30.fc31.x86_64
$ lsmod
Module Size Used by
uinput 20480 0
rfcomm 90112 4
xt_CHECKSUM 16384 1
xt_MASQUERADE 20480 3
nf_nat_tftp 16384 0
nf_conntrack_tftp 20480 3 nf_nat_tftp
tun 57344 1
bridge 208896 0
stp 16384 1 bridge
llc 16384 2 bridge,stp
nf_conntrack_netbios_ns 16384 1
nf_conntrack_broadcast 16384 1 nf_conntrack_netbios_ns
xt_CT 16384 3
ip6t_REJECT 16384 12
nf_reject_ipv6 20480 1 ip6t_REJECT
ip6t_rpfilter 16384 1
ipt_REJECT 16384 5
nf_reject_ipv4 16384 1 ipt_REJECT
xt_conntrack 16384 38
ebtable_nat 16384 1
ebtable_broute 16384 1
ip6table_nat 16384 1
ip6table_mangle 16384 1
ip6table_raw 16384 1
ip6table_security 16384 1
iptable_nat 16384 1
nf_nat 53248 4 ip6table_nat,nf_nat_tftp,iptable_nat,xt_MASQUERADE
iptable_mangle 16384 1
iptable_raw 16384 1
iptable_security 16384 1
nf_conntrack 163840 8 xt_conntrack,nf_nat,nf_conntrack_tftp,nf_conntrack_netbios_ns,nf_nat_tftp,nf_conntrack_broadcast,xt_CT,xt_MASQUERADE
nf_defrag_ipv6 24576 1 nf_conntrack
nf_defrag_ipv4 16384 1 nf_conntrack
libcrc32c 16384 2 nf_conntrack,nf_nat
ip_set 53248 0
nfnetlink 16384 1 ip_set
ebtable_filter 16384 1
ebtables 40960 3 ebtable_nat,ebtable_filter,ebtable_broute
ip6table_filter 16384 1
ip6_tables 36864 7 ip6table_filter,ip6table_raw,ip6table_nat,ip6table_mangle,ip6table_security
iptable_filter 16384 1
cmac 16384 2
bnep 28672 2
sunrpc 491520 1
vfat 20480 1
fat 86016 1 vfat
btusb 57344 0
x86_pkg_temp_thermal 20480 0
intel_powerclamp 20480 0
coretemp 20480 0
btrtl 24576 1 btusb
kvm_intel 311296 0
btbcm 16384 1 btusb
kvm 802816 1 kvm_intel
btintel 32768 1 btusb
bluetooth 634880 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
irqbypass 16384 1 kvm
ecdh_generic 16384 1 bluetooth
ecc 36864 1 ecdh_generic
crct10dif_pclmul 16384 1
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
uvcvideo 114688 0
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 28672 1 uvcvideo
videobuf2_common 57344 2 videobuf2_v4l2,uvcvideo
videodev 266240 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wl 6467584 0
mc 61440 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
asus_nb_wmi 28672 0
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 94208 1 snd_hda_codec_conexant
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_conexant
snd_hda_codec_hdmi 73728 1
snd_hda_intel 53248 6
snd_intel_dspcfg 28672 1 snd_hda_intel
mei_hdcp 24576 0
cfg80211 843776 1 wl
snd_hda_codec 163840 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
asus_wmi 36864 1 asus_nb_wmi
snd_seq 86016 0
sparse_keymap 16384 1 asus_wmi
joydev 28672 0
intel_cstate 20480 0
snd_hda_core 102400 5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
iTCO_wdt 16384 0
iTCO_vendor_support 16384 1 iTCO_wdt
intel_rapl_msr 20480 0
snd_hwdep 16384 1 snd_hda_codec
intel_uncore 147456 0
intel_rapl_perf 20480 0
pcspkr 16384 0
snd_seq_device 16384 1 snd_seq
snd_pcm 126976 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer 40960 2 snd_seq,snd_pcm
mei_me 45056 1
snd 102400 22 snd_hda_codec_generic,snd_seq,snd_hda_codec_conexant,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm
soundcore 16384 1 snd
i2c_i801 32768 0
mei 122880 3 mei_hdcp,mei_me
processor_thermal_device 20480 0
lpc_ich 28672 0
intel_rapl_common 32768 2 intel_rapl_msr,processor_thermal_device
int340x_thermal_zone 16384 1 processor_thermal_device
intel_soc_dts_iosf 20480 1 processor_thermal_device
intel_pch_thermal 16384 0
asus_wireless 20480 0
int3400_thermal 20480 0
acpi_thermal_rel 16384 1 int3400_thermal
acpi_pad 184320 0
ip_tables 32768 5 iptable_filter,iptable_security,iptable_raw,iptable_nat,iptable_mangle
rfkill 28672 8 asus_wmi,bluetooth,cfg80211
nouveau 2273280 1
i915 2449408 6
mxm_wmi 16384 1 nouveau
ttm 122880 1 nouveau
i2c_algo_bit 16384 2 i915,nouveau
drm_kms_helper 233472 2 i915,nouveau
crc32c_intel 24576 7
drm 585728 11 drm_kms_helper,i915,ttm,nouveau
serio_raw 20480 0
r8169 94208 0
wmi 36864 3 asus_wmi,mxm_wmi,nouveau
video 53248 3 asus_wmi,i915,nouveau
fuse 139264 3
$ lspci -nnk | grep -iA3 "Network"
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Lite-On Communications Inc Device [11ad:6675]
Kernel driver in use: wl
Kernel modules: wl
Une amie n'arrivait pas à résoudre le problème non plus sur son ordinateur (sous Mint de son côte) et c'est également un "apt update && apt upgrate -y" qui a fonctionné pour elle en désactivant le secure boot.